Hideo Kojima tweet confirms Phantom Pain involvement?

Metal Gear series creator Hideo Kojima has seemingly confirmed as the main man behind The Phantom Pain.

In an image posted by Kojima-san himself on Twitter, you will see that he is the Producer, Game Designer and Director on a title he is currently editing a trailer for. However, what gives his involvement on The Phantom Pain away is the title of the trailer in the top left corner. It reads: "TPP_GDC2013_720p_ESRB".

Is it possible that Ground Zeroes is actually the beginning portion of Metal Gear Solid 5: The Phantom Pain? In addition, it's worth remembering that The Phantom Pain is due a new trailer at GDC next week -- the words 'GDC2013' are also clearly visible in the image below.

(click for full size)

Are you guys excited for GDC? Let us know down below and make sure to keep your eyes posted to PlayStation Universe for all things Metal Gear.